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Finding the Fourth Proportional to 6,356.80, 8,772.36 and 3,562.24

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Solution

The fourth proportional to 6,356.80, 8,772.36 and 3,562.24 is: 4,915.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,356.80 : 8,772.36 = 3,562.24 : x
  2. Step 2: Convert to fraction form
    6,356.80/8,772.36 = 3,562.24/x
  3. Step 3: Cross multiply
    6,356.80x = 8,772.36 × 3,562.24
  4. Step 4: Simplify right side
    6,356.80x = 31,249,251.69
  5. Step 5: Solve for x
    x = 31,249,251.69/6,356.80
  6. Step 6: Final answer
    x = 4,915.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.